User blog comment:Anobi/DMC in Retro/@comment-33460495-20120413103522/@comment-775152-20120414044008

So far the only bonus content I've found is in the Vault - a selectable option from the main menu with, as Derekoe says, artwork. There's also a neat audio file within the vault that lets you change the background music and listen to tracks from the 3 games. Kind of like a "soundtrack lite". :)